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Fair value of financial instruments (Narrative) (Details) $ in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2021 CAD ($)	Dec. 31, 2021 USD ($)
Disclosure of fair value measurement of assets [line items]
Fair value of warrants transferred from Level 3 to Level 1	$ 5.1
Foreign exchange contracts aggregate amount		$ 3.0
Level 3 [Member]
Disclosure of fair value measurement of assets [line items]
Sensitivity analysis, variance, percentage	10.00%	10.00%

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- Definition

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- Definition

Represents amount of fair value of warrants transferred from Level three to Level 1.

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- Definition

Represents the foreign exchange contracts aggregate amount.

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Sensitivity analysis, variance, percentage

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